package fuckTest.testMap;

import java.util.HashMap;
import java.util.Map;

public class Demo1 {
    public static void main(String[] args) {

        Map map = new HashMap();
        map.put("1", 111);
        map.put("1", 111111);
        map.put("2", 222);
        map.put("2", 222222);
        map.put(2, 22);
        System.out.println(map.get("1"));
        System.out.println(map.get("2"));
        System.out.println(map.get(2));

        System.out.println(Math.ceil(-0.5));
        System.out.println(Math.round(-0.5));

    }
}
